Color

#fff34d

#fff34d
hex#fff34d
rgbrgb(255, 243, 77)
hslhsl(56, 100%, 65%)
oklchoklch(0.946 0.177 105.2)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.859

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#4d58ff

#ff9a4d · #b2ff4d

#4dfff3 · #f34dff

Split-complementary

Open in tool →

#4db2ff · #9a4dff

#4dff9a · #4d58ff · #ff4db2

Contrast

#fff34d as textRatioAAAA largeAAAFix
Aaon white
1.16:1failfailfail
  • AA: use #807700 as the text (4.61:1)
  • AAA: use #615a00 as the text (7.07:1)
  • AA: or shift the background to #6b6b6b (4.61:1)
  • AAA: or shift the background to #4f4f4f (7.09:1)
Aaon black
18.18:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fff34d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#fff34d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fff34d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #fff34d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fff34d-bdbea2-4e9edf-282d1f-f1ede9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md